Three Types of Air Purifiers That Help With Asthma Symptoms


Managing Asthma involves knowing the severity of your condition and what triggers your specific symptoms. Common asthma triggers include pollen, dust, mold spores, smoke, and pet dander. An air purifier traps environmental triggers in a filter and releases clean, sanitized air back into the room. Here are three types of air purifier units that can alleviate or relieve asthma symptoms.

HEPA Purifiers

HEPA stands for high-efficiency particulate air. These units have pleated filters that trap environmental triggers via a fan. The fan pushes surrounding air through the filter, captures the allergens, and passes clean air back out into the room. These filters trap pollen particles, pet dander, dust, smoke, and mold spores efficiently and quickly. However they won’t be able to eliminate odors, paint fumes, or the underlying mold issue in your room or living space. Having said that, HEPA filters are the best option for buyers with asthma. They can capture particles as small as 0.3 microns from the air, cleaning 99.7% of allergens in a room.

Electrostatic Cleaners

This purifier passes air through a series of electrically charged plates that traps particles and triggers. They are effective at capturing most of the common asthma offenders but require a fair amount of maintenance. Depending on how big your unit is, you may have to clean the plates daily or once a week. Avoid electrostatic purifiers that release ozone to sanitize the air. Ozone can be an irritant and trigger a fresh bout of symptoms.


Rather than trap particles, these units release electrically charged ions that seek out pollutants and particles in the air and drag them to surfaces such as curtains or shades, walls, or ceiling tiles. This prevents the particles from floating or hovering in the air of the room.

Always check the Clean Air Delivery Rate or CADR on an air purifier before you buy it. The higher the CADR, the better the air purifiers’ performance. You can use the CADR to determine what size of air purifier will suit your room. Divide your square footage by 1.55 to ascertain the minimum CADR you should look for in a unit.